I've never run Safari and I find this interesting. So if the tab is say, torn apart and put on a second monitor (which is visible), but you're working on another tab, does it literally pause the animation halfway?

I'm pretty sure it's just starting the animation.

Can confirm this. It was a good feature when using youtube. I usually search for something then shift+click about 4-5 links and watch them one by one. In chrome you have to go into each on of those tabs and pause the video to avoid a clusterf*ck of different sounds. With safari it seems to do it automatically.

The "Stop Autoplay for Youtube" Extension helps with that: https://chrome.google.com/webstore/detail/stop-autoplay-for-...

Why shift+click? Don't you like tabs (ctrl+click)?

I'd not want this for audio, what about pandora in a tab, I don't want it active to listen to the music.

It won't start the animation until you view the tab, but it will continue to play it when you move away.

isn't that flash plugin features ? It's a big problem with flash game on Kongregate for a long time now.